Even i have noticed backlink update for few of my client website. I think backlink update process started in June as by that time I was having first page rankings for many of the keywords.
But what about the
PR update. In some data centers, I find different
PR means 0
PR & the current
PR. To check
PR, i use
Live PR | Live Pagerank | Check Your PageRank | PageRank Checker. I think this 0
PR means that the particular data center is updating.
Also, I am loosing my google rankings for the keywords which were always in 1st page. Now they have gone down to 2nd or 3rd page.
What is happening in Google?